diff --git a/platform/ide-core/api-dump-unreviewed.txt b/platform/ide-core/api-dump-unreviewed.txt
index fbc6336550be..aa9804abb087 100644
--- a/platform/ide-core/api-dump-unreviewed.txt
+++ b/platform/ide-core/api-dump-unreviewed.txt
@@ -1555,6 +1555,8 @@ com.intellij.openapi.options.Configurable$NoMargin
 com.intellij.openapi.options.Configurable$NoScroll
 com.intellij.openapi.options.Configurable$Promo
 - a:getPromoIcon():javax.swing.Icon
+com.intellij.openapi.options.Configurable$SingleEditorConfiguration
+- a:getDialogInitialSize():java.awt.Dimension
 com.intellij.openapi.options.Configurable$TopComponentController
 - sf:EMPTY:com.intellij.openapi.options.Configurable$TopComponentController
 - a:setLeftComponent(java.awt.Component):V
diff --git a/platform/ide-core/src/com/intellij/openapi/options/Configurable.java b/platform/ide-core/src/com/intellij/openapi/options/Configurable.java
index 7293485fa740..9bd5540f7467 100644
--- a/platform/ide-core/src/com/intellij/openapi/options/Configurable.java
+++ b/platform/ide-core/src/com/intellij/openapi/options/Configurable.java
@@ -232,6 +232,18 @@ public interface Configurable extends UnnamedConfigurable {
     @NotNull java.util.List<Configurable> getModifiableParents();
   }
 
+  /**
+   * The interface is used when configuration opens as single configuration in dialog.
+   */
+  interface SingleEditorConfiguration {
+    /**
+     * Override to set default initial size of the window.
+     *
+     * @return initial window size
+     */
+    @NotNull Dimension getDialogInitialSize();
+  }
+
   /**
    * Ask opened configurable to focus on a control with a specified label.
    * It could be a tab name, name of the tree item, checkbox label, etc.
diff --git a/platform/platform-impl/api-dump-unreviewed.txt b/platform/platform-impl/api-dump-unreviewed.txt
index 540529e6b17d..ffbbe8a2d528 100644
--- a/platform/platform-impl/api-dump-unreviewed.txt
+++ b/platform/platform-impl/api-dump-unreviewed.txt
@@ -3597,10 +3597,12 @@ e:com.intellij.ide.plugins.PluginEnabledState
 f:com.intellij.ide.plugins.PluginHostsConfigurable
 - com.intellij.openapi.options.Configurable
 - com.intellij.openapi.options.Configurable$NoScroll
+- com.intellij.openapi.options.Configurable$SingleEditorConfiguration
 - <init>():V
 - apply():V
 - createComponent():javax.swing.JComponent
 - disposeUIResources():V
+- getDialogInitialSize():java.awt.Dimension
 - getDisplayName():java.lang.String
 - isModified():Z
 - reset():V
@@ -9744,6 +9746,7 @@ c:com.intellij.openapi.options.newEditor.SettingsDialog
 - p:getDimensionServiceKey():java.lang.String
 - f:getEditor():com.intellij.openapi.options.newEditor.AbstractEditor
 - p:getHelpId():java.lang.String
+- getInitialSize():java.awt.Dimension
 - getPreferredFocusedComponent():javax.swing.JComponent
 - p:getStyle():com.intellij.openapi.ui.DialogWrapper$DialogStyle
 - p:setHelpTooltip(javax.swing.JButton):V
diff --git a/platform/platform-impl/src/com/intellij/ide/plugins/PluginHostsConfigurable.java b/platform/platform-impl/src/com/intellij/ide/plugins/PluginHostsConfigurable.java
index a94cce5a8fa4..57fa2ee62f63 100644
--- a/platform/platform-impl/src/com/intellij/ide/plugins/PluginHostsConfigurable.java
+++ b/platform/platform-impl/src/com/intellij/ide/plugins/PluginHostsConfigurable.java
@@ -38,7 +38,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
-public final class PluginHostsConfigurable implements Configurable.NoScroll, Configurable {
+public final class PluginHostsConfigurable implements Configurable.NoScroll, Configurable, Configurable.SingleEditorConfiguration {
   private final ListTableModel<UrlInfo> myModel = new ListTableModel<>() {
     @Override
     public void addRow() {
@@ -173,7 +173,7 @@ public final class PluginHostsConfigurable implements Configurable.NoScroll, Con
       withCellComponentProvider(CellComponentProvider.forTable(myTable)).
       installOn(myTable);
 
-    return ToolbarDecorator.createDecorator(myTable).disableUpDownActions().setMinimumSize(JBUI.size(470, 220)).createPanel();
+    return ToolbarDecorator.createDecorator(myTable).disableUpDownActions().createPanel();
   }
 
   @Override
@@ -275,6 +275,11 @@ public final class PluginHostsConfigurable implements Configurable.NoScroll, Con
     }
   }
 
+  @Override
+  public @NotNull Dimension getDialogInitialSize() {
+    return JBUI.DialogSizes.medium();
+  }
+
   private static @NotNull String correctRepositoryRule(@NotNull String input) {
     if (VirtualFileManager.extractProtocol(input) == null) {
       return VirtualFileManager.constructUrl(URLUtil.HTTP_PROTOCOL, input);
diff --git a/platform/platform-impl/src/com/intellij/ide/plugins/certificates/PluginCertificateManager.kt b/platform/platform-impl/src/com/intellij/ide/plugins/certificates/PluginCertificateManager.kt
index 895a4fefaf5f..add83db6eb95 100644
--- a/platform/platform-impl/src/com/intellij/ide/plugins/certificates/PluginCertificateManager.kt
+++ b/platform/platform-impl/src/com/intellij/ide/plugins/certificates/PluginCertificateManager.kt
@@ -5,6 +5,7 @@ import com.intellij.ide.IdeBundle
 import com.intellij.openapi.fileChooser.FileChooser
 import com.intellij.openapi.options.BoundConfigurable
 import com.intellij.openapi.options.Configurable
+import com.intellij.openapi.options.Configurable.SingleEditorConfiguration
 import com.intellij.openapi.options.ConfigurationException
 import com.intellij.openapi.ui.DialogPanel
 import com.intellij.openapi.ui.Messages
@@ -22,6 +23,7 @@ import com.intellij.util.ui.JBDimension
 import com.intellij.util.ui.JBUI
 import com.intellij.util.ui.UIUtil
 import java.awt.CardLayout
+import java.awt.Dimension
 import java.security.cert.X509Certificate
 import javax.swing.JPanel
 import javax.swing.tree.TreeSelectionModel
@@ -30,7 +32,7 @@ class PluginCertificateManager :
   BoundConfigurable(
     IdeBundle.message("plugin.manager.custom.certificates"),
     "plugin.certificates"
-  ), Configurable.NoScroll, CertificateListener {
+  ), Configurable.NoScroll, CertificateListener, SingleEditorConfiguration {
 
   private val myTree: Tree = Tree()
 
@@ -154,7 +156,6 @@ class PluginCertificateManager :
         showCard(getCardName(certificate))
       }
     }
-    myRootPanel.minimumSize = JBUI.size(500, 260)
   }
 
   private fun chooseFileAndAdd() {
@@ -216,4 +217,5 @@ class PluginCertificateManager :
     myDetailsPanel.add(scrollPane, uniqueName)
   }
 
+  override fun getDialogInitialSize(): Dimension = JBUI.DialogSizes.medium()
 }
diff --git a/platform/platform-impl/src/com/intellij/openapi/options/newEditor/AbstractEditor.kt b/platform/platform-impl/src/com/intellij/openapi/options/newEditor/AbstractEditor.kt
index aef9d56a6f74..f63bdb1b2d63 100644
--- a/platform/platform-impl/src/com/intellij/openapi/options/newEditor/AbstractEditor.kt
+++ b/platform/platform-impl/src/com/intellij/openapi/options/newEditor/AbstractEditor.kt
@@ -12,6 +12,7 @@ import org.jetbrains.annotations.ApiStatus
 import org.jetbrains.annotations.NonNls
 import java.awt.AWTEvent
 import java.awt.BorderLayout
+import java.awt.Dimension
 import javax.swing.Action
 import javax.swing.JComponent
 import javax.swing.JPanel
@@ -51,4 +52,6 @@ abstract class AbstractEditor internal constructor(parent: Disposable) : JPanel(
   protected open fun cancel(source: AWTEvent?): Boolean = true
 
   protected abstract fun getPreferredFocusedComponent(): JComponent?
+
+  open fun getDialogInitialSize(): Dimension? = null
 }
diff --git a/platform/platform-impl/src/com/intellij/openapi/options/newEditor/SettingsDialog.java b/platform/platform-impl/src/com/intellij/openapi/options/newEditor/SettingsDialog.java
index 6fe9542f842b..8dce9a836ceb 100644
--- a/platform/platform-impl/src/com/intellij/openapi/options/newEditor/SettingsDialog.java
+++ b/platform/platform-impl/src/com/intellij/openapi/options/newEditor/SettingsDialog.java
@@ -180,6 +180,11 @@ public class SettingsDialog extends DialogWrapper implements UiCompatibleDataPro
     return dimensionServiceKey;
   }
 
+  @Override
+  public @Nullable Dimension getInitialSize() {
+    return editor.getDialogInitialSize();
+  }
+
   @Override
   public JComponent getPreferredFocusedComponent() {
     return editor.getPreferredFocusedComponent();
diff --git a/platform/platform-impl/src/com/intellij/openapi/options/newEditor/SingleSettingEditor.java b/platform/platform-impl/src/com/intellij/openapi/options/newEditor/SingleSettingEditor.java
index 129af031488e..2c00c04ecf48 100644
--- a/platform/platform-impl/src/com/intellij/openapi/options/newEditor/SingleSettingEditor.java
+++ b/platform/platform-impl/src/com/intellij/openapi/options/newEditor/SingleSettingEditor.java
@@ -5,6 +5,7 @@ import com.intellij.openapi.Disposable;
 import com.intellij.openapi.options.Configurable;
 import com.intellij.ui.scale.JBUIScale;
 import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
 
 import java.awt.*;
 import java.util.HashMap;
@@ -23,12 +24,17 @@ public final class SingleSettingEditor extends ConfigurableEditor {
   };
   private final Map<Configurable, ConfigurableController> myControllers = new HashMap<>();
   private ConfigurableController myLastController;
+  private Dimension myDialogInitSize;
 
   SingleSettingEditor(Disposable parent, Configurable configurable) {
     super(parent);
     add(myBanner, BorderLayout.NORTH);
     myBanner.setVisible(false);
     init(configurable, false);
+
+    if (configurable instanceof Configurable.SingleEditorConfiguration singleEditorConfiguration) {
+      myDialogInitSize = singleEditorConfiguration.getDialogInitialSize();
+    }
   }
 
   @Override
@@ -46,4 +52,9 @@ public final class SingleSettingEditor extends ConfigurableEditor {
 
     myBanner.setVisible(myBanner.canShow());
   }
+
+  @Override
+  public @Nullable Dimension getDialogInitialSize() {
+    return myDialogInitSize;
+  }
 }
\ No newline at end of file